* added chrony default config, tools, menu entries

git-svn-id: https://svn.pengutronix.de/svn/ptxdist/trunks/ptxdist-trunk@7060 33e552b5-05e3-0310-8538-816dae2090ed

4 files changed, 295 insertions, 0 deletions

diff --git a/generic/etc/chrony/chrony.conf b/generic/etc/chrony/chrony.conf
new file mode 100644
index 000000000..f2d594978
--- /dev/null
+++ b/generic/etc/chrony/chrony.conf
@@ -0,0 +1,97 @@
+# ----------------------------------------------------------------------
+# chrony client configuration for Comsoft AG NTP Client
+# ----------------------------------------------------------------------
+# Author: 	Bjørn Bürger <b.buerger@pengutronix.de>
+# Last Change: 	Tue Mar  6 15:12:41 UTC 2007
+#
+# Hints:
+# ----------------------------------------------------------------------
+# a comment
+! a comment
+# ----------------------------------------------------------------------
+# Specify your own NTP Servers:
+
+server @UNCONFIGURED_CHRONY_SERVER_IP@ auto_offline minpoll 5 maxpoll 10
+
+# other servers may be referenced here, but they will only be requested,
+# if set online by /etc/init.d/chrony online
+! server 0.pool.ntp.org offline minpoll 8
+! server 1.pool.ntp.org offline minpoll 8
+! server 2.pool.ntp.org offline minpoll 8
+
+# To avoid changes being made to your computer's gain/loss compensation
+# when the measurement history is too erratic, you might want to enable
+# one of the following lines.  The first seems good for dial-up (or
+# other high-latency connections like slow leased lines), the second
+# seems OK for a LAN environment.
+! maxupdateskew 100
+! maxupdateskew 5
+maxupdateskew 20
+
+# rtc
+rtcdevice /dev/rtc
+rtcfile /var/run/chrony.rtc
+rtconutc
+
+# driftfile
+driftfile /var/run/chrony.drift
+
+# pidfile
+pidfile /var/run/chronyd.pid
+
+# keyfile for chronyc
+keyfile /etc/chrony/chrony.keys
+commandkey 1
+
+# chronyd can save the measurement history for the servers to files when
+# it it exits.  However, this will affect the lifetime of you flash
+# medium, if this is not used on a ramdisk. Be careful.
+dumponexit
+dumpdir /var/run/chrony
+
+# INITIAL CLOCK CORRECTION
+# This option is only useful if your NTP servers are visible at
+# start-time of chrony. The value '10' means that if the error is less
+# than 10 seconds, it will be gradually removed by speeding up or
+# slowing down your computer's clock until it is correct.  If the error
+# is above 10 seconds, an immediate time jump will be applied to correct
+# it.
+#
+# Get Time from your configured NTP Server
+#
+initstepslew 10 @UNCONFIGURED_CHRONY_SERVER_IP@
+
+# Logging
+# Comment this line out to turn off logging.
+! log measurements statistics tracking rtc
+logdir /var/run/chrony
+
+# Access Rules
+! allow 10.0.0.0/8
+! allow 192.168.0.0/16
+
+# Send Broadcast every 60 Seconds
+! broadcast 60 10.255.255.255
+
+# Let computer be a server when it is unsynchronised.
+# set local straum below 15, even if unsynced
+# this will circumwent long delays when starting clients
+local stratum 10
+
+# we dont need an accesslog.
+noclientlog
+
+# The next option causes a message to be written to syslog when chronyd
+# has to correct an error above 0.5 seconds (you can use any amount you
+# like).
+! logchange 0.5
+
+# This directive defines an email address to which mail should be sent
+# if chronyd applies a correction exceeding a particular threshold to the
+# system clock.
+! mailonchange root@localhost 0.5
+
+# Allow command access
+! cmdallow 10/8
+! cmdallow 192.168/16
+cmdallow 127.0.0.1
diff --git a/generic/etc/chrony/chrony.keys b/generic/etc/chrony/chrony.keys
new file mode 100644
index 000000000..25e507188
--- /dev/null
+++ b/generic/etc/chrony/chrony.keys
@@ -0,0 +1,4 @@
+# Key File for chronyc
+# this is needed, to access chronyd from chronyc client
+#
+1 @UNCONFIGURED_CHRONY_ACCESS_KEY@
diff --git a/generic/etc/init.d/chrony b/generic/etc/init.d/chrony
new file mode 100755
index 000000000..e7e937ae3
--- /dev/null
+++ b/generic/etc/init.d/chrony
@@ -0,0 +1,167 @@
+#!/bin/sh
+#
+# This is a chrony init.d script which ist called by init(1)
+# with [start|stop] as argument. This version does not
+# need an additional start-stop daemon.
+#
+# Last change:  Bjørn Bürger <b.buerger@pengutronix.de>
+# Date:		Tue Mar  6 16:00:30 UTC 2007
+
+PATH=/sbin:/bin:/usr/bin:/usr/sbin
+BINARY="/usr/sbin/chronyd"
+CONFIG="/etc/chrony/chrony.conf"
+PREFIX="chrony: "
+# This system doesn´t have full rtc ioctl support for
+# chrony statistic functions
+RTC_IOCTL="incomplete"
+
+# some chronyc commands need prior autentication: extract keys from config
+KEY=$(awk '$1 ~ /^commandkey$/ { print $2; exit}' /etc/chrony/chrony.conf)
+PASSWORD=`awk '$1 ~ /^'$KEY'$/ {print $2; exit}' /etc/chrony/chrony.keys`
+
+# convenience functions
+message(){
+	echo "${PREFIX}$*" >&2
+}
+
+message_n(){
+	echo -n "${PREFIX}$*" >&2
+}
+
+bailout(){
+	echo "${PREFIX}ERROR   --- $*" >&2
+	exit 1
+}
+
+usage(){
+	echo "Usage: $0 {start|stop|restart|force-reload|online|offline|set-rtc|status|statistics}"
+}
+
+killproc() {
+	killall $1
+}
+
+# main functions
+start_proc() {
+	message_n "Reading system time from RealTimeClock ..."
+	/sbin/hwclock --hctosys || message_n " ### FAILED ### "
+	message "DONE"
+	message_n "Starting NTP server: chronyd ..."
+	[ -e "$CONFIG" ] || bailout "Configfile $CONFIG not found, PANIC!"
+	$BINARY -f $CONFIG
+	message "DONE"
+}
+
+stop_proc() {
+	message_n "Stopping NTP server: chronyd ..."
+	killproc chronyd
+	message "DONE"
+	message_n "Writing system time to RealTimeClock ..."
+	/sbin/hwclock --systohc || message_n " ### FAILED ### "
+	message "DONE"
+}
+
+set_online(){
+        message_n "Setting NTP server ONLINE ... "
+	/bin/pidof chronyd > /dev/null || bailout " chronyd is not running "
+	/usr/bin/chronyc <<-EOF
+	password $PASSWORD
+	online
+	burst 5/10
+	quit
+	EOF
+	message "DONE"
+	exit 0
+}
+
+set_offline(){
+        message_n "Setting NTP server OFFLINE ... "
+	/bin/pidof chronyd > /dev/null || bailout " chronyd is not running "
+	/usr/bin/chronyc <<-EOF
+	password $PASSWORD
+	offline
+	EOF
+	message "DONE"
+	exit 0
+}
+
+set_rtc(){
+	/bin/pidof chronyd > /dev/null || bailout " chronyd is not running "
+	if [ "$RTC_IOCTL" == "incomplete" ] ; then 
+	# We are running on a system with limited rtc support,
+	# so we cannot let the ntp client do the job. 
+	stop_proc
+	sleep 1
+	start_proc
+	exit 0
+	else
+	# This requires enhanced rtc support
+        message_n "Setting NTP time to RTC ... "
+	cat <<-EOF | /usr/bin/chronyc
+	password $PASSWORD
+	trimrtc
+	writertc
+	dump
+	EOF
+	message "DONE"
+	exit 0
+	fi
+}
+
+status(){
+	/bin/pidof chronyd > /dev/null || bailout " chronyd is not running "
+	cat <<-EOF | /usr/bin/chronyc
+	password $PASSWORD
+	tracking
+	sources
+	EOF
+}
+
+statistics(){
+	/bin/pidof chronyd > /dev/null || bailout " chronyd is not running "
+	cat <<-EOF | /usr/bin/chronyc
+	password $PASSWORD
+	sourcestats
+	EOF
+}
+
+case "$1" in
+        start)
+        	start_proc
+		;;
+	stop)
+		stop_proc
+		;;
+        restart|force-reload)
+                message "Restarting NTP server: chronyd ... "
+                stop_proc
+		sleep 1
+                start_proc
+                ;;
+        reload)
+                message "Reload is not supported"
+		exit 1
+		;;
+	online)
+		set_online
+		;;
+	offline)
+		set_offline
+		;;
+	set-rtc)
+		set_rtc
+		;;
+	status)
+		status
+		;;
+	statistics)
+		statistics
+		;;
+        *)
+                usage
+		exit 1
+                ;;
+esac
+
+exit 0
+
diff --git a/generic/usr/bin/chrony_command b/generic/usr/bin/chrony_command
new file mode 100755
index 000000000..ed492935f
--- /dev/null
+++ b/generic/usr/bin/chrony_command
@@ -0,0 +1,27 @@
+#!/bin/sh
+# This is a generic chrony command script which
+# extracts the chrony access key from /etc/chrony/chrony.key
+# and executes one given command
+# some chronyc commands need prior autentication: extract keys from config
+PREFIX="chrony command helper: "
+command=$1
+if [ -n "$command" ] ; then
+	echo "Usage: $0 <command>"
+	exit 0
+fi
+[ "$command" -eq "--help" ] && command="help"
+
+bailout(){
+        echo "${PREFIX}ERROR   --- $*" >&2
+        exit 1
+}
+
+KEY=$(awk '$1 ~ /^commandkey$/ { print $2; exit}' /etc/chrony/chrony.conf)
+PASSWORD=`awk '$1 ~ /^'$KEY'$/ {print $2; exit}' /etc/chrony/chrony.keys`
+
+/bin/pidof chronyd > /dev/null || bailout " chronyd is not running "
+/usr/bin/chronyc <<-EOF
+password $PASSWORD
+$command
+EOF
+